How many licensed cannabis testing labs operate in the United States — broken down by state and city, sourced directly from state regulators.
Coverage
Select a state for its full breakdown — testing lab count and top cities.
By State
By Program
Data Coverage
Share of licensed testing labs with each contact field on file. Licence filings for this class carry business contact details more often than dispensary records do.
Methodology
Counts come from the California Department of Cannabis Control, Michigan Cannabis Regulatory Agency, Illinois Department of Financial and Professional Regulation, Massachusetts Cannabis Control Commission, New York Office of Cannabis Management, Colorado Marijuana Enforcement Division, Oregon Liquor and Cannabis Commission, Washington State Liquor and Cannabis Board, Nevada Cannabis Compliance Board, and Maine Office of Cannabis Policy public licence files. We re-crawl them weekly, deduplicate licensees, and drop closed or revoked licences, so the figure reflects testing labs actually operating — not every licence ever issued.
FAQ
Our database tracks 40 licensed cannabis testing labs across 4 states and 19 cities, each verified against the relevant state regulator and refreshed weekly.
California leads with 20 licensed testing labs, followed by Oregon.
Directly from the CA DCC, MI CRA, IL IDFPR, MA CCC, NY OCM, CO MED, OR OLCC, WA LCB, NV CCB, and ME OCP public licence files. Testing Labs rarely appear on consumer listing sites, so the regulator file is the only complete source — which is what makes this count possible.
Yes — browse every record free, or subscribe to unlock phone, email, address, licence details, and owner contacts, with CSV export filtered by licence type and state. 58% of testing labs in this database have an email on file and 58% have a phone.
Go Deeper
Browse every licensed testing lab free. Subscribe to unlock full contact data and CSV export by licence type and state.